FIX: The Taskbar is reset to the default settings when you use the "Automatically Log On" feature in Windows 7 and in Windows Server 2008 R2

Symptoms

You configure a computer that is running Windows 7 or Windows Server 2008 R2 to automatically log on when you start the computer. When you restart the computer, any customizations that you made to the Taskbar are lost and the Taskbar is reset to its default settings.

Cause

This problem occurs because of a race condition between Windows Explorer and Taskhost.exe.

Resolution

Hotfix information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=supportNote In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

There are no prerequisites for installing this hotfix.

Restart information

You do not have to restart the computer after you apply this hotfix.

File information

The English (United States) version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

For all supported x86-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Explorerframe.dll

6.1.7600.16504

1,495,040

15-Jan-2010

19:44

x86

Explorerframe.dll

6.1.7600.20618

1,495,040

15-Jan-2010

20:03

x86

For all supported x64-based versions of Windows 7 and Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Explorerframe.dll

6.1.7600.16504

1,864,192

15-Jan-2010

19:53

x64

Explorerframe.dll

6.1.7600.20618

1,864,192

15-Jan-2010

20:03

x64

For all supported Itanium-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Explorerframe.dll

6.1.7600.16504

3,803,136

15-Jan-2010

09:13

IA-64

Explorerframe.dll

6.1.7600.20618

3,803,136

15-Jan-2010

09:33

IA-64

Additional file information for all supported x86-based versions of Windows 7

File name

Update.mum

File version

Not Applicable

File size

1,459

Date (UTC)

17-Jan-2010

Time (UTC)

18:24

Platform

Not Applicable

---

File name

X86_0512c2e6c0bff676bc803d56e60d7d69_31bf3856ad364e35_6.1.7600.16504_none_2c2b8b7afe99177f.manifest

File version

Not Applicable

File size

701

Date (UTC)

17-Jan-2010

Time (UTC)

18:24

Platform

Not Applicable

---

File name

X86_355786d1b4b7daed3c3564d266fa07fd_31bf3856ad364e35_6.1.7600.20618_none_366ad443c3d6bdfa.manifest

File version

Not Applicable

File size

701

Date (UTC)

17-Jan-2010

Time (UTC)

18:24

Platform

Not Applicable

---

File name

X86_microsoft-windows-explorerframe_31bf3856ad364e35_6.1.7600.16504_none_c2a8e268d4e47dba.manifest

File version

Not Applicable

File size

46,850

Date (UTC)

15-Jan-2010

Time (UTC)

20:19

Platform

Not Applicable

---

File name

X86_microsoft-windows-explorerframe_31bf3856ad364e35_6.1.7600.20618_none_c32bb06fee069ed1.manifest

File version

Not Applicable

File size

46,850

Date (UTC)

15-Jan-2010

Time (UTC)

20:52

Platform

Not Applicable

Additional file information for all supported x64-based versions of Windows 7 and Windows Server 2008 R2

File name

Amd64_299456a3c3139fe7d81930bab4c2764d_31bf3856ad364e35_6.1.7600.16504_none_f6a644f2806387f5.manifest

File version

Not Applicable

File size

1,052

Date (UTC)

17-Jan-2010

Time (UTC)

18:24

Platform

Not Applicable

---

File name

Amd64_a1ef970082e523017c1e5b82f3cc9e61_31bf3856ad364e35_6.1.7600.20618_none_539a4ae8b0a62e26.manifest

File version

Not Applicable

File size

1,052

Date (UTC)

17-Jan-2010

Time (UTC)

18:24

Platform

Not Applicable

---

File name

Amd64_microsoft-windows-explorerframe_31bf3856ad364e35_6.1.7600.16504_none_1ec77dec8d41eef0.manifest

File version

Not Applicable

File size

46,854

Date (UTC)

15-Jan-2010

Time (UTC)

20:52

Platform

Not Applicable

---

File name

Amd64_microsoft-windows-explorerframe_31bf3856ad364e35_6.1.7600.20618_none_1f4a4bf3a6641007.manifest

File version

Not Applicable

File size

46,854

Date (UTC)

15-Jan-2010

Time (UTC)

21:03

Platform

Not Applicable

---

File name

Update.mum

File version

Not Applicable

File size

1,467

Date (UTC)

17-Jan-2010

Time (UTC)

18:24

Platform

Not Applicable

---

File name

Wow64_microsoft-windows-explorerframe_31bf3856ad364e35_6.1.7600.16504_none_291c283ec1a2b0eb.manifest

File version

Not Applicable

File size

46,504

Date (UTC)

15-Jan-2010

Time (UTC)

20:01

Platform

Not Applicable

---

File name

Wow64_microsoft-windows-explorerframe_31bf3856ad364e35_6.1.7600.20618_none_299ef645dac4d202.manifest

File version

Not Applicable

File size

46,504

Date (UTC)

15-Jan-2010

Time (UTC)

20:25

Platform

Not Applicable

Additional file information for all supported Itanium-based versions Windows Server 2008 R2

File name

Ia64_0fcbf135d99391f569f7295a598bfafc_31bf3856ad364e35_6.1.7600.20618_none_fcdcd79197cd0de7.manifest

File version

Not Applicable

File size

1,050

Date (UTC)

17-Jan-2010

Time (UTC)

18:24

Platform

Not Applicable

---

File name

Ia64_90565ff1f90a56a50989d867fdf95032_31bf3856ad364e35_6.1.7600.16504_none_473ab01f9a0196e8.manifest

File version

Not Applicable

File size

1,050

Date (UTC)

17-Jan-2010

Time (UTC)

18:24

Platform

Not Applicable

---

File name

Ia64_microsoft-windows-explorerframe_31bf3856ad364e35_6.1.7600.16504_none_c2aa865ed4e286b6.manifest

File version

Not Applicable

File size

46,852

Date (UTC)

15-Jan-2010

Time (UTC)

20:44

Platform

Not Applicable

---

File name

Ia64_microsoft-windows-explorerframe_31bf3856ad364e35_6.1.7600.20618_none_c32d5465ee04a7cd.manifest

File version

Not Applicable

File size

46,852

Date (UTC)

15-Jan-2010

Time (UTC)

20:55

Platform

Not Applicable

---

File name

Update.mum

File version

Not Applicable

File size

1,463

Date (UTC)

17-Jan-2010

Time (UTC)

18:24

Platform

Not Applicable

---

File name

Wow64_microsoft-windows-explorerframe_31bf3856ad364e35_6.1.7600.16504_none_291c283ec1a2b0eb.manifest

File version

Not Applicable

File size

46,504

Date (UTC)

15-Jan-2010

Time (UTC)

20:01

Platform

Not Applicable

---

File name

Wow64_microsoft-windows-explorerframe_31bf3856ad364e35_6.1.7600.20618_none_299ef645dac4d202.manifest

File version

Not Applicable

File size

46,504

Date (UTC)

15-Jan-2010

Time (UTC)

20:25

Platform

Not Applicable

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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